Portable computer keyboard support



FIG. 1 is a top perspective view of a portable computer keyboard support showing my new design;

FIG. 2 is an enlarged top plan view thereof;

FIG. 3 is an enlarged front elevational view thereof;

FIG. 4 is an enlarged rear elevational view thereof;

FIG. 5 is an enlarged side elevational view thereof;

FIG. 6 is an enlarged bottom plan view thereof;

FIG. 7 is a top perspective view of a second embodiment of my new design;

FIG. 8 is an enlarged top plan view thereof;

FIG. 9 is an enlarged left side elevational view thereof;

FIG. 10 is an enlarged right side elevational view thereof;

FIG. 11 is an enlarged front elevational view thereof;

FIG. 12 is an enlarged back elevational view thereof;

FIG. 13 is an enlarged bottom plan view thereof. 

The ornamental design for a portable computer keyboard support, as shown and described. 